<https://holecuttersdrillbits.com/product/1-2-5-16-hss-threaded-shank-stop-countersink/#product>
<http://schema.org/description>
"Size: 1/2-5/16Material: High Speed SteelFinish: Uncoated (Bright)Shank Type: ThreadedBrand: Drill America"
<https://holecuttersdrillbits.com/product/1-2-5-16-hss-threaded-shank-stop-countersink/>